Ajax, ON to Rio de Janeiro: time difference
Rio de Janeiro is 1 h ahead of Ajax, ON. Live clocks for both, the working hours they share, and how each one sits against your own time.
🇧🇷 Rio de Janeiro, Brazil
15
- Brasilia Standard Time
- UTC-3
- Golden hour
☀️ 05:19 · 🌙 17:59 · 12 h 40 min
+1 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Ajax, ON 16:29 4:29 PM Rio de Janeiro 17:29 5:29 PM You –:–
16:29 4:29 PM
Eastern Daylight Time · UTC-4
☀️ 07:35 · 🌙 18:29
17:29 5:29 PM
Brasilia Standard Time · UTC-3
☀️ 05:19 · 🌙 17:59
·
+1 h
Rio de Janeiro is 1 h ahead of Ajax, ON.
When you, Ajax, ON and Rio de Janeiro are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇨🇦 Ajax, ON
0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM
🇧🇷 Rio de Janeiro
1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM 0 12 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇨🇦 Ajax, ON | 🇧🇷 Rio de Janeiro |
|---|---|---|
| Local time | 16:29 | 17:29 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 2026 |
| Time zone | Eastern Daylight Time | Brasilia Standard Time |
| UTC offset | UTC-4 | UTC-3 |
| Offset from Ajax, ON | — | +1 h |
| IANA zone | America/Toronto | America/Sao Paulo |
| Daylight saving | On summer time → UTC-5, Nov 1, 01:00 | Not observed |
| Sunrise | 07:35 | 05:19 |
| Sunset | 18:29 | 17:59 |
| Daylight | 10 h 54 min | 12 h 40 min |
| People on this clock | 119,677 | 6,211,223 |
Compare Ajax, ON with another city
More comparisons with Ajax, ON: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Ajax, ON and Rio de Janeiro: common questions
What is the time difference between Ajax, ON, and Rio de Janeiro?
Rio de Janeiro is 1 hour ahead: it uses UTC−3, while Ajax is on UTC−4.
If it is 9:00 AM in Ajax, ON, what time is it in Rio de Janeiro?
At 9:00 AM in Ajax, clocks in Rio de Janeiro show 10:00 AM.
If it is 6:00 PM in Ajax, ON, what time is it in Rio de Janeiro?
At 6:00 PM in Ajax, clocks in Rio de Janeiro show 7:00 PM.
Is there a time when both Ajax, ON, and Rio de Janeiro are at work?
Yes: from 9:00 AM to 5:00 PM in Ajax (10:00 AM to 6:00 PM in Rio de Janeiro), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Rio de Janeiro compared with Ajax, ON?
The new day starts in Rio de Janeiro earlier: at 11:00 PM in Ajax it is already midnight there. Until 1:00 AM in Rio de Janeiro, Ajax is still on the previous day.
Does the time difference between Ajax, ON, and Rio de Janeiro change?
Yes. The clocks change only in Ajax. From November 1, 2026, Rio de Janeiro will be 2 hours ahead of Ajax.
